In Africa, having the devolutionary mutation that leaves an elephant tuskless renders the creature of no interest to elephant-slaying ivory poachers.
Philosopher of biology Paul Nelson talks with host Andrew McDiarmid about pursuing intelligent design theory in a science culture committed to naturalism.
Paul Nelson expresses his appreciation for his University of Pittsburgh mentor Adolf Grünbaum.
Brahe, a 16th-century Danish astronomer, sat on his astronomical research for years, rather than sharing it with Johannes Kepler, his assistant.
Bechly touches on the oldest australopithecine fossil skull ever found, from 3.8 million years ago.